The question of a sex difference in intelligence has long divided the experts. IQ researchers sum standardized subtest scores to calculate intelligence in general, and find that males outscore females by about 3.8 points, whereas factor analysts derive the g factor scores from intertest-correlations and find no consistent sex differences in general intelligence. The latter finding is puzzling, as males have larger average brains than females, and brain size correlates .30–.45 with g (and IQ… CONTINUE READING